Home Sales in the Rockwall Lake Estate subdivision in Rockwall, Texas have been brisk in 2013, with 13 houses sold. The houses sold were built between the years 1978 and 1997, and the average sales price for a house in the Rockwall Lake Estate subdivision was $95,925. Click here for the full report. Rockwall Texas Real Estate Reports Register online for monthly updates on your city and neighborhood homes information, automatically emailed to you.   05/30/2014